Not me. If Twitter ever went to a fully-paid model, I'd leave. Not worth paying for.
I’m really on the opposite fence here. Once social media starts charging money instead of harvesting and using my data for their gains, I might reconsider joining them.
I probably wouldn’t join anyway, I’ve not used social media for years (except for forums like this of course) and I’m only missing out on ridiculous fights, extremists, pictures of other peoples food and sunsets. Oh and cats. I’ll live… ☺️